Zagreb's architectural landscape is a testament to its historical ties with the Austro-Hungarian Empire. The city's buildings, such as the Croatian National Theatre, designed by the famed Viennese architects Fellner and Helmer, showcase the grandeur typical of the era with their Neo-Classical and Neo-Baroque styles. The Kallina House, with its Art Nouveau influences, stands as a prime example of the city's decorative prowess, featuring intricate floral patterns and a unique ceramic-tile frieze of bat motifs. This blend of architectural styles provides a visual narrative of Zagreb's cultural and historical evolution, making it a fascinating destination for those interested in the confluence of history and design.